Crocodylomorpha Walker 1968 [Clark 1988] see Subclass Crocodylomorpha Hay, 1930
   Crocodyliformes Clark 1988 [Sereno, Larsson, Sidor & Gado 2001]
     Mesoeucrocodylia Whetstone & Whybrow 1983 [Sereno, Larsson, Sidor & Gado 2001]
       †Thalattosuchia Fraas, 1901 see Order Thalattosuchia Fraas, 1901
         1.1 Genus †Pelagosaurus Bronn, 1841
         1.2 Genus †Steneosaurus Geoffroy, 1825
         2.1 Genus †Metriorhynchus Meyer, 1830
         2.2 Genus †Geosaurus Cuvier, 1824